18512984

素因数分解:

$2^3\times 7^2\times {\mathrm{83}}^1\times {\mathrm{569}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 40937400

約数和(自身を除く): 22424416

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 83, 98, 166, 196, 332, 392, 569, 581, 664, 1138, 1162, 2276, 2324, 3983, 4067, 4552, 4648, 7966, 8134, 15932, 16268, 27881, 31864, 32536, 47227, 55762, 94454, 111524, 188908, 223048, 330589, 377816, 661178, 1322356, 2314123, 2644712, 4628246, 9256492, 18512984]

約数ペア:

[(1, 18512984), (2, 9256492), (4, 4628246), (7, 2644712), (8, 2314123), (14, 1322356), (28, 661178), (49, 377816), (56, 330589), (83, 223048), (98, 188908), (166, 111524), (196, 94454), (332, 55762), (392, 47227), (569, 32536), (581, 31864), (664, 27881), (1138, 16268), (1162, 15932), (2276, 8134), (2324, 7966), (3983, 4648), (4067, 4552)]